Material Girls was so different for me, I'd never done a teen movie.

Balancing my film career and my music will be something I'm just going to have to deal with, as it happens. I think I can balance it out; the choices will probably be pretty clear. If there's a movie I just have to do, I will work the music around it.

I like both music and acting, and they both have a lot in common - timing, immediacy, stuff like that. But acting is more regimented. You wait around for hours, you don't get to write the script, you get hired. Music represents me better. I'm not acting; I'm just expressing myself.

It's cool to play a sinister bad guy who also has a human side.

In choosing any role, I ask the same questions: what kind of part is it? is the role challenging? does the director have a vision? is the story moving? etc.

I've been into music for a long time. I started playing drums when I was 8 and piano when I was 10, then bass and guitar when I was 18.

This was basically the first time I got to act in action scenes, with things blowing up all around me. It sounds corny, but I think every actor would like to - at least once in his or her career - play the person who saves the entire world.